阿摩線上測驗
34 I can’t find my keys. I must have ________ them somewhere.
(A) leave
(B) leaving
(C) left
(D) leaves
答案：登入後查看
統計： A(42), B(33), C(224), D(9), E(0) #3765488
統計： A(42), B(33), C(224), D(9), E(0) #3765488
